bq28z610 Impedance Track™ Gas Gauge and Protection Solution
for 1-Series to 2-Series Cell Li-Ion Battery Packs
1
1 Features
1 • Autonomous Battery Charging Control Using
Dedicated Master Mode I 2 C Interface
• Cell Balancing with Internal Bypass To Optimize
Battery Health
• High-Side Protection N-CH FET Drive Allows
Serial Bus Communication During Fault
Conditions
• Programmable Protection Levels for Voltage,
Current, and Temperature
• Analog Front End with Two Independent ADCs
– Support for Simultaneous Current and Voltage
Sampling
– High-Accuracy Coulomb Counter with Input
Offset Error < 1 µV (Typical)
• Supports Down to 1-mΩ Current Sense Resistor
While Capable of 1-mA Current Measurement
• Supports Battery Trip Point (BTP) Function for
Windows ® Integration
• SHA-1 Authentication Responder for Increased
Battery Pack Security
• 400-kHz I 2 C Bus Communications Interface for
High-Speed Programming and Data Access
• Compact 12-Pin VSON Package (DRZ)